The ratio is around 1 in 1000 births.
1/1000 births = 0.001% of calves are born as twins.
One. Twins occur in one out of 1000 births.
two calves were born yesterday.
Since a mature cow is one that already has had a couple of calves already, and since they are only able to have one calf once a year (rarely twins), on average a mature cow will have 10 calves in 10 years.
They can, especially if you are referring to twins that are both male or both female. The problems arise if you have brother and sister twins. Ninety percent of the time the female will be a freemartin or hermaphrodite because of the influence of the testosterone produced by her brother who was sharing the same placenta as her. The bull calf though, is 100% fertile unless you castrate him.
1/1000 births = 0.001% of calves are born as twins.
If it is a group of calves born from different mothers than you call them a herd of calves or a group of calves. If it is two calves born at the same time from the same mother than they are twins, just the same as human offspring would be called.
One. Twins occur in one out of 1000 births.
A female moose usually calves once per year, and has one calf at a time, twins are rare.
Red deer usually have about 2-3 calves but twins are very rare.
a female dolphin can have up to about 10 to 13 calves in her life time, and at a time, twins are very rare so usually 1.
Always one. I've never heard of two calves being born at the same time; if there were twins, it's always one after the other, as the cow's pelvis is only wide enough to allow one calf through at a time.
Camels only have one calf at a time. Having twins is unheard of.
The odds are 75 percent.
two calves were born yesterday.
No. Blue eyes in calves is a very rare genetic occurrence. Almost all calves born into this world are born with brown eyes, not blue.
Since a mature cow is one that already has had a couple of calves already, and since they are only able to have one calf once a year (rarely twins), on average a mature cow will have 10 calves in 10 years.